Why hydrogen absorption lines are weak in o and m stars
What is the fundamental explanation (in terms of atomic physics) of why hydrogen absorption lines are weak in O and M stars and strong in A stars. Why are molecular absorption lines strong in K and M stars but weak in O, B and A stars?
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What is the fundamental explanation (in terms of atomic physics) of why hydrogen absorption lines are weak in O and M stars and strong in A stars.
Use methods of descriptive statistics to summarize the data. Comment on the findings.
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